1. Food Graphs
1.1. Food Chain
1.1.1. Producer
1.1.1.1. Primary consumer
1.1.1.1.1. Secondary consumer
1.2. Food Web
1.3. Trophic Pyrimid
2. Healthy ecosystem
2.1. Primary Succession
2.1.1. No Ecosystem
2.1.2. Population growth
2.1.2.1. J-curve
2.1.2.1.1. S-curve
2.1.3. Population growth rate
2.1.4. Pionerr species
2.2. Secondary Succession
2.2.1. Ecosystem after a Disaster
2.2.2. Population growth
2.2.2.1. J-curve
2.2.2.1.1. S-curve
2.2.3. Population growth rate
2.3. Biodiverse
2.4. Indicator species
3. Urbanization
3.1. Water pollution
3.1.1. Wetlands
3.1.1.1. Erosion
3.1.1.2. Water shed
3.1.1.2.1. Point source
3.1.1.2.2. Non-point Source
3.1.1.2.3. Water purification
3.1.2. Inorganic pollutant
3.1.3. organic polluntant
4. Biomes
4.1. Freshwater Biome
4.2. Marine Biome
4.3. Grassland
4.4. Coniferous Forest
4.4.1. Ecosystem
4.4.1.1. Communties
4.4.1.1.1. Population
4.4.1.2. Biodiversity
4.4.1.3. Limiting Factors
4.5. Temprate forest
4.6. Rainforests
4.7. Desert
4.8. Tundra
4.9. Biotic
4.9.1. Living or once living
4.10. Abiotic
4.10.1. Never living
5. Hot Spots
5.1. Biodiversity
5.1.1. Species Biodiversity
5.1.2. Genetic Biodeversity
5.2. Endangered species
5.2.1. Threatened species
6. natural resource
6.1. Non renewable resource
6.1.1. Cannot be replenished in a human life time
6.2. renewable resource
6.2.1. Can be replenished in a human life time